Galloway, 18, joins for an undisclosed fee and has signed a five-year contract, with Everton revealing he will join up with their under-21 squad for the coming season.

Zimbabwe-born Galloway graduated from the youth set-up at MK Dons, becoming their youngest ever first-team player when he made his debut as a substitute, aged 15 years and 240 days, in a 6-0 FA Cup first-round win over Nantwich Town in November 2011.

The England under-19 international made 17 appearances for MK Dons in total, scoring once.

He told Everton's official website: "It means an awful lot to me coming to such a great club. "I'm now looking forward to learning off some of the more senior players -- such as Sylvain Distin and Phil Jagielka.

"I've been watching them for years now and they're great professionals, great players -- players who have been there and done it. That's a big thing for me to be able to learn off guys like that.

"Short-term, I just want to work hard to better myself as a footballer here, which I know I will with the coaches and other staff here. Long-term, I also want to get in the Everton team and play week in and week out in the Premier League and play in a team that's doing well, which I know we will do."